solution on hydraulic conductivity of compacted bentoniteMihara, Morihiro 
; Kobayashi, Ichizo*
In this study, the dependencies of hydraulic conductivity of the compacted bentonite of which a dry density was 1.8 Mg/m
on sodium nitrate concentration were investigated experimentally. The enhancement of hydraulic conductivity was observed using sodium nitrate solution of high concentration. The enhancement of 0
2mol/L of the nitrate concentration was significant high. In the solution of 
2mol/L nitrate, the hydraulic conductivities were hardly changed. The hydraulic conductivities using the sodium nitrate solution of high concentration, 2mol/L, were less than 10
m/s which was required value in the repository to restrict the ground water flow. It was more difficult that nitrate concentration of solution affects hydraulic conductivity of the highly compacted bentonite comparing with the lower compacted density bentonite. It was found that the effects of the viscosities of nitrate solution were small.
Language |
: | Japanese |
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Report No. |
: | JAEA-Research 2007-020 |
Pages |
: | 45 Pages |
Publication Year/Month |
: | 2007/03 |
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Paper URL |
: | |
Keywords |
: | no keyword |
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: |
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: |
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